Steam-trap.



PATENTED MAY l0, 1904.

A. K. MONTGOMERY.

STEAM TRAP. APPLIoATIoN FILED nu. a, 1904.

H0 MODEL.

IN VEN TDR TTU/MEV.

Wl T NE SSE S UNrreD STATES Patented May 10, 1904.

,PATENT OFFICE.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 759,461, dated May 10`1904.

Application filed March 5, 1904. Serial No. 196,734. (No model.)

T0 all whom t may concern: Y

Be it known that l, ANDREW K. MONTGOM- nRY, a citizen of the UnitedStates of America, residing in the city and county of Philadelphia, inthe State of Pennsylvania, have invented a `certain new and usefulImprove ment in Steam-' l`raps, of which the following is a true andexact description, reference being had to the accompanying'drawings,which iorm a part thereof.

My invention relates to a novel construction of steam-trap, preferablyused in combi nation with a steam-separator.

The object of my invention is to provide a device of this kind of simpleand efficient operation in which a trap-separator is connected with thesteanrconduit, and preferably with a separator-chamber constituting partof said conduit, by two ports, one normally open and provided with avalve held a short distance from itsseat by resilient means and theother ol contracted area and preferably constantly open. Thetrap-chamber is provided with a waste-pipe having a valve which normallycloses it, and the chamber is also provided with a movable deviceactuated by the accumulation and discharge of water from thetrap-cha1nber and connected with the valve of the waste-pipe, so as toopen the same when the accumulated water reaches a determined amount.rl`heV opening of the wastepipe valve by releasing the pressure in thetrap-chamber causes the valve operating on the port connecting thesteam-pipe and trapchamber to close, and said valve will remainclosedwuntil after the waste-pipe valve has closed and until the steamenteringV the trapchamber through the constantly-open restricted passagehas restored a practical equilibrium of pressure between the steam-pipeand the trap-chamber.

In the drawings I have represented a steam separator and trapconstructed in accordance with my invention in what l believe to be itsmost eiiicient form.

In said drawings, Figure l is a side ele vation of my device; Fig. 2, avertical section on the lineQ 2 of Fig. l; Fig. 3, a crosssection on theline 3 3 of Fig. 1, and Fig. 4 a cross-section on the line L 4E of Fig.2.

A represents the sepainting-chamber, having the steam-pipe entering itat A' and a steam-pipe leaving' it at A2, the chamber A thusconstituting a part oi' the steam-conduit.

B represents the trap-chamber separated from the chamber A by thepartition C, in which is formed the port and valve-seat (indicated atO') and which also separates the yoke, (indicated at O2.)

D is a steam-conduit oi restricted area connecting with the chambers Aand B at t and as shown.

E is the valve, adapted to close the port C' vand having a valve-stem E'with nut E2 at top, between which and the yoke C2 is situated a lightspring E, which normally holds the valve E a slight distance above itsseat. r1`he upper part of the wall oi' the chamber B is constructed toform a bearing, as indicated at B', Jfor a rock-shai`t Fl, from whichshaft a lever-arm F3 extends into the chamber B and connects, through alink F2, with a cross-bar or bail F', secured to the top oi' a bucket F,which is placed below the valve-seated port C', so as to receive anywater which enters the chamber B through said port. The rockshaft F* hasattached to one of its outer ends the lever-arm Fr, supporting acounterweight F and connected by a link F7 with a valve H', working in avalve-casing H, which is situated under a waste-pipe G, said waste-pipe,as shown, terminating in a siphon (ur' Gr, the arm (i of which extendsinto the bucket F, as shown in Fig. 2.

The steam entering the separator-chamber A deposits its condensed watertherein, the water iinding its way through the port C' into the bucketF, and when a sufficient amount of water is collected in the bucket toovercome the counter-balance Fi the bucket moves down and the lever-armF" moves up, opening, through the link F7, the valve H', whereupon thesteam-pressure in the chamber B forces the water in the bucket F intothe siphon-leg G and through the siphon out of the wastepipe. The escapeof steam is prevented by the lowering of pressure in the chamber B,which causes the valve E to seat itself, and when the weight of water inthe bucket F is sufficiently decreased the counterweight re- ICO storesthe bucket to normal position and restores the valve H to its normallyclosed position. On the closing of the valve H the steam escaping fromchamber A into chamber B through the pipe D gradually restores thepressure in chamber B, and When a practical equilibrium in the twochambers is secured the spring E3 opens the valve E, permitting anyaccumulated Water in the chamber A to iiow into the bucket F, the valveremaining open until the bucket is again depressed.

The construction described is given by me as that which I consider bestadapted for the Work; but it is obviously capable of considerable changeand modification without departure from the spirit of my invention.

Having now described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

1. In a steam-trap, a steam-conduit in combination With a chamber B,having a port connecting it with the conduit, a valve adapted to closesaid port, but normally held a short distance from its seat by resilientmeans, a second port of restricted area connecting the steam-conduit andchamber B, a Waste-pipe leading from chamber B, and provided With anormally closed valve, a movable device situated in chamber B, andactuated by the collection in and discharge of Water from said chamber,and means for opening the valve in the Waste-pipe actuated by saidmovable device When the Water collected in chamber B, reaches adetermined amount.

2. In a steamtrap, a separating chamber forming part of a steam-conduitin combination With a chamber B, having a port connect- 'ing it With theseparating-chamber, a valve leading from chamber B, and provided With anormally closed valve, a movable device situated in chamber B, andactuated by-the collection in and discharge of Water from said chamber,and means for opening the valve in the Waste-pipe actuated by saidmovable device When the Water collected in chamber B, reaches adetermined amount.

3. In a steam-trap, asteam-conduit in combination with a chamber B,havingaport connecting it with the conduit, a valve adapted to closesaid port but normally held a short distance from its seat by resilientmeans, a second port of restricted area connecting the steam-conduit andchamber B, a bucket F, a lever and counterweight arranged to supportbucket F, in chamber B, said bucket being so placed as to receive Waterpassing through the valved port into chamber B, a pipe G, connecting thebottom of bucket F, with a Waste-pipe G2, and a valve in pipe G2,connected and actuated by the movements of the lever supporting thebucket F.

4:. In a steam-trap, a separating chamber forming part of asteam-conduit in combination With a chamber B, having a port connectingit With the separating-chamber, a valve adapted to close said port butnormally held a short distance from its seat by resilient means, asecond port of restricted area connecting the steam-conduit and chamberB, a bucket F, a lever and counterweight arranged to support bucket F,in chamber B, said bucket being so placed as to receive Water passingthrough the valved port into chamber B, a pipe G, connecting the bottomof bucket F, With a Wastepipe G2, and avalve in pipe G2, connected andactuated by the movements of the lever supporting the bucket F.

ANDREW K. MONTGOMERY.

I/Vitnesses GEoRGE M. HAFF, THoMAs A. SoMERs.

